Official NHA Assessment

Race 3: NEW TURF CARRIERS MR 70 HANDICAP (Open)

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Line Horse
Porfirio
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
6 / 10
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Bom Bom              4    59.0    1    0.00     0.5   70    63           70    +0
2    Porfirio             6    57.5    2    0.80     0.0   65    65           65    +0
3    Eventidor            6    61.0    3    3.60     0.0   72    69           69    -3
4    Allaroundtheworld (  3    60.0    4    5.20     1.0   70    64           64    -6
5    Wave Warrior         3    56.5    5    5.40     1.0   63    57           57    -6
6    Fine Admiral         3    58.0    6    5.45     1.0   66    60           60    -6
7    Fish Eagle           5    61.5    7    7.65     0.0   73    69           69    -4
8    Blazing Light        3    60.0    8    7.85     1.0   70    64           64    -6
9    Silent Trigger       6    57.5    9    21.85    0.0   65    61           61    -4
10   National Dream       6    59.0    10   24.45    0.0   71    64           64    -7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bom Bom 70 64 70 -6 0.5 -
2 Porfirio Line 65 88 65 +23 0.0
3 Eventidor 72 89 69 +20 0.0 -
4 Allaroundtheworld (GB) 70 73 64 +9 1.0 -
5 Wave Warrior 63 68 57 +11 1.0 -
6 Fine Admiral 66 73 60 +13 1.0 -
7 Fish Eagle 73 71 69 +2 0.0 -
8 Blazing Light 70 62 64 -2 1.0 -
9 Silent Trigger 65 60 61 -1 0.0 -
10 National Dream 71 68 64 +4 0.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points